Articles | Volume 13, issue 8
https://doi.org/10.5194/tc-13-2203-2019
https://doi.org/10.5194/tc-13-2203-2019
Research article
 | 
19 Aug 2019
Research article |  | 19 Aug 2019

Water tracks intensify surface energy and mass exchange in the Antarctic McMurdo Dry Valleys

Tobias Linhardt, Joseph S. Levy, and Christoph K. Thomas

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Cited articles

Adlam, L. S., Balks, M. R., Seybold, C. A., and Campbell, D. I.: Temporal and spatial variation in active layer depth in the McMurdo Sound Region, Antarctica, Antarct. Sci., 22, 45–52, https://doi.org/10.1017/S0954102009990460, 2010. a, b
Arblaster, J. M. and Meehl, G. A.: Contributions of External Forcings to Southern Annular Mode Trends, J. Climate, 19, 2896–2905, https://doi.org/10.1175/JCLI3774.1, 2006. a
Aubinet, M., Grelle, A., Ibrom, A., Rannik, Ü., Moncrieff, J., Foken, T., Kowalski, A. S., Martin, P. H., Berbigier, P., Bernhofer, C., Clement, R., Elbers, J., Granier, A., Grünwald, T., Morgenstern, K., Pilegaard, K., Rebmann, C., Snijders, W., Valentini, R., and Vesala, T.: Estimates of the Annual Net Carbon and Water Exchange of Forests: The EUROFLUX Methodology, edited by: Fitter, A. H. and Raffaelli, D. G., Adv. Ecol. Res., 30 113–175, https://doi.org/10.1016/S0065-2504(08)60018-5, 1999. a
Baldocchi, D. D.: Assessing the eddy covariance technique for evaluating carbon dioxide exchange rates of ecosystems: past, present and future, Glob. Change Biol., 9, 479–492, https://doi.org/10.1046/j.1365-2486.2003.00629.x, 2003. a
Ball, B. A. and Levy, J.: The role of water tracks in altering biotic and abiotic soil properties and processes in a polar desert in Antarctica, J. Geophys. Res.-Biogeo., 120, 270–279, https://doi.org/10.1002/2014JG002856, 2015. a, b, c, d
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Short summary
This study presents surface energy fluxes in an Antarctic polar desert in the summer season, comparing wetted soil at a water track with dominating dry soils. Elevated energy uptake, evaporation, and soil heat fluxes at the water track highlight the importance of wetted soils for water and energy cycling in polar deserts. This connection will grow more relevant, as wetted soils are expected to expand due to climate warming, with implications for landscape-scale hydrology and soil ecosystems.